8449420 has 24 divisors (see below), whose sum is σ = 20278944. Its totient is φ = 2896896.

The previous prime is 8449417. The next prime is 8449421. The reversal of 8449420 is 249448.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8449421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30037 + ... + 30316.

It is an arithmetic number, because the mean of its divisors is an integer number (844956).

Almost surely, 2^8449420 is an apocalyptic number.

It is an amenable number.

8449420 is an abundant number, since it is smaller than the sum of its proper divisors (11829524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8449420 is a wasteful number, since it uses less digits than its factorization.

8449420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60369 (or 60367 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 8449420 is about 2906.7886060049. The cubic root of 8449420 is about 203.6771453428.

The spelling of 8449420 in words is "eight million, four hundred forty-nine thousand, four hundred twenty".